Abstract
A two-state stochastic model for fatigue crack growth problems is presented and solutions are given which will, for the first time, provide the distribution of the random time to reach a critical crack size directly. Two extensive fatigue data sets are then employed to verify the model. Several fatigue crack growth laws which account for the stress ratio are examined and the results show that the concept of crack closure will best describe the influence of stress ratio on fatigue crack growth. A detailed description of the procedure of parameter estimation is also given.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 419-433 |
| Number of pages | 15 |
| Journal | Engineering Fracture Mechanics |
| Volume | 34 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1989 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering